AIIMS 2014 Chemistry Stoichiometry MCQ Question
Assertion Both 106 g of sodium carbonate and 12 g of graphite have same number of carbon atoms. Reason Both 106 g sodium carbonate and 12 g of graphite contain 1 g-atom of carbon atoms.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
Both Assertion and Reason are true and Reason is not the correct explanation of Assertion
Assertion is true but Reason is false
Both Assertion and Reason are false
Correct Answer
Detailed Explanation
The assertion is true because 106 g of sodium carbonate (Na2CO3) contains one mole of carbon atoms, equivalent to 6.022 x 10^23 carbon atoms, as it has one carbon atom per formula unit. The reason is also true because 12 g of graphite, which is composed of carbon, represents one mole of carbon atoms (since the molar mass of carbon is approximately 12 g/mol). Therefore, both the assertion and reason are true, and the reason correctly explains why the assertion is accurate.
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